The program seems to be ok, when we go online with the plc and watch the rungs, there are bits dropping out with no explaination, no ryme or reason why, there are five I/O's and 16 drives and a couple inverter drives. ac to dc inverters. In short this is all interfaced with a wire drawing machine built in Italy, custom drives ect. In short I'm getting an alarm for something that isn't true, any advice would be big help, thanks guys.